Automobile jack



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" if il i all ll ll Mt l JERIEDERIGK C. HELLER, 01* TROY, NEW YORK.

Application filed Jlpril 3, 1922. Serial 13th. 548,948.

wa citizen of the United States, residing at 'lroy, in the county ofli-ensselaer and State of New York, have invented new and usefulImprovements in Automobile Jacks, of which the following is aspecification.

Reference may be hadto the accompanying; drawings, and the referencecharacters marked thereon, which form a part of this specification.Similar characters refer to similarparts in the several figures therein.

in the use olf lifting jacks and particu larly automobile jacks itfrequently happens that the most convenient point at which to locate thejack is beneath a truss-rod or some weak part oi the vehicle whichextends directly beneath an axle-housing or very strong part of thevehicle.

lduch is frequently the case when it is desired to elevate one of therear corners of an automobile, in which is usually found a truss-roddirectly beneath the rear-airlehousing.

The principal object of the presentinvention is to apply a lifting jackto a rear-axlehousing or the like without interfering with a truss-rodor the like which may be directly beneath the housing.

Uther objects will appear in connection with the following description.

l have ascertained that the stated object can be accomplished byproviding the lift ing-post of the jack with a slot in its upper endadapted to receive a truss-rod or the like, and covering this slot witha head adapted to engage the overlying axle-housing. v

Fig. 1 oithe drawings is a View in side elevation partly broken awayshowing a lifting-jack, embodying my invention.

Fig. 2 is a view of a broken-away upper end portion of thelifting-postwith the removable head.

Fig. 3 is a rear view ot the rear end of an automobile chassis showingthe jack partly broken away, and applied to the rear-axlehousing withoutinterference with the neigln boring trussrod. l

Fig. 4; is a horizontal cross-section taken through the upper end of theslotted liftingpost through the hinge oithe movable head.

Referring to the drawings wherein the invention is shown in preferredform, 1 is the base, Q the casing, and 3 the lifting post of anautomobile jack.

The post, 3, is adapted to be raised and lowered by a step-by-stepmovement by means of pawl-and-ratehet mechanism aetu ated by a sockethandle, l, in the usual manner.

The details of this pawlaand-ratchet mechanism are immaterial so far asthe present invention concerned, it being neces sary to understandmerely that the post, 3, can be gradually raised or lowered.

The post, 3, is provided in its upper end with a slot, 5, whereby theupper end of the post is divided into two members, 6 and '5. Upon themember, 6, which is shown as the toothed member of the ratchet-mechanismis pirotally mounted or hinged at 8, a removable head, 9, which can beswung from a position resting upon the post member, 7, as shown in Fig.1 and indicated by dotted lines in Fig. 2, to a positionshown by solidlines in Fig. 2, in which latter position the slot, 5, is uncoveredandis free to receive a truss-1nd, 10, or the like without interferencewith the upward or downward movement of the post, 3.

In Fig. 3, l have shown the rear end of an automobile chassis havingwheels, 11, a rear-axlehousing, 12, and a truss-rod, l0.

In operating the jack to lift one corner oi the rear end of anautomobile as shown, the head, 9, is swung back to the position shown bysolid lines in Fig. 2, and the jack is placed with the slot, 5, directlybeneath the truss-rod, l0.

The head, 9, is then swung down to the position shown by solid lines inFig. l, closing the slot, 5, and causing the head to rest upon the postmember, 7, which with the post-member, 6, tends to support the head. v

The head, 9,.being thus located beneath the rear axle housing, '12, thejack is operated in the usual manner causing the head toengage therear-axle-housing, 12, while the truss-rod, 10, is free to play withinthe slot, 5. I

The upward thrust oi the jack is thus exerted directly upon therear-aXle-housing and not upon the truss-rod.

In removing the jack, the post, 3, is lowered until the head, 9, is:lree from the rearaXle-housing, 12, whereupon the head is swung back tothe position shown by solid lines in Fig. 2, and the jack readilyremoved. l have shown as a preferred form of my invention the head, 9,hinged to one member of the post, 3, by means of a horizontal or'IDQVEblG head an pivmzli 00111104? 011, S;

poses 0i the invention it is imnm'terial in What manner the head ishinged 0 t hinged sand Ob emn 52. a having 2L lifting-past provided :L$101? in upper and and n howl 111cm =5 in and Hum.

3. A p. E: h ,1 :1 Y. lff-pOs'ii provided slut i11dn5upp0r and and 11head pivcnnnected with me of the postman bers, 9.116 osciilal'im'y inand from :1 position to restupon the, other pnsi -lncnlbm'.

In tesiinxonv whero'h 1 have hereunto set my hand. this 123111 (My ,5Him-v11. 1922.

FREDFLIU 1K TU LUBE.

